"This polyethylene swivel caster with polyethylene hub is ideal for carts, bins or containers, has steel construction and steel ball bearings. Rolls quietly with less marking. Wheel Diameter in. 4, Capacity lbs. 550, Bolt Hole Spacing 3 3/8 x 3, Caster Type Swivel, Mount Height in. 5 1/4, Wheel Width in. 1 11/16, Casters qty. 1, Wheel Type Polyethylene/polyethylene core, Foot Brake No, Overall Height in. 5 1/4, Top Plate Dimensions L x W in. 4 1/2 x 4. Rugged steel construction Steel ball bearings Caster has a width of 1 11/16in. and flares to 2in. by the hub Overall Hole Centers Spread to 3 3/8in. x 3in. Single needle ball bearing with race that slides over axle Mounted on 4 1/2in. x 4in. top plate"
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